Park Shin Hye is a daughter's maid in Jeguk High...... Park Shin Hye as Cha Eun Sang.. Lee Min Ho is a Illegitimate second son of the highest in jeguk company..... Lee Min Ho as Kim Tan And a second couple Kang Min Hyuk as Yoon Chan Young an intellegnt son of Mr.Yoon the secretary of Jeguk high and Krystal Jung Soo Jung as Lee Bo Na an smart too like Chan Young and before there couple first Kim Tan and Lee Bo Na are first couple and their break because Kim Tan is going to America...